Megavar delivered HV testing and protection system commissioning for the Bluegrass BESS (Blue Grass) project in Queensland's Western Downs, working in partnership with
Specifications
Used for earth grid performance assessment by off-frequency current injection, including fall of potential earth impedance measurement, step and touch voltage measurement, ground potential rise assessment, current split measurement and transferred potential investigation. Applied on transmission and distribution substations, power stations and industrial facilities where accurate earth grid voltage measurement is required in the presence of dominant power frequency noise.
Off-frequency injection testing is core work for Megavar, not an occasional job, and we run the TVM1100 and LCI2000C together on substation earthing assessments regularly. We will advise on test setup, electrode and traverse placement, and interpretation against AS 2067 and IEEE Std 80, which on earthing work is usually worth more than the instrument itself.
Tell us about your project and we will get back to you within 24 hours with availability and a quote.
Or call us directly on 1300 730 499
We’re available Mon – Fri 8am – 5pm
Megavar engineers use this unit on commissioning projects across Australia. Hire it from a team that knows it inside out.
All Megavar test equipment is maintained under a documented calibration programme. Instruments are calibrated either by external calibration laboratories or in-house against reference standards that are themselves laboratory-calibrated, with measurement traceable to Australian national measurement standards held by the National Measurement Institute. A current calibration certificate is available on request. If your project requires a specific calibration interval, test standard, or documentation for a client submission, tell us at enquiry on 1300 730 499 and we will confirm what applies before you commit.
Have a setup or application question about this instrument? Talk directly to a Megavar commissioning engineer — no call centre, no guesswork.
Measuring the small voltages produced during off-frequency current injection testing of earthing systems: fall of potential earth impedance, step and touch voltage, ground potential rise, current split and transferred potential. It is designed to accompany the Mitton LCI2000C injection unit but works with any off-frequency injection test.
Digital. It uses digital signal processing, locks to the injected test frequency anywhere from 45 Hz to 65 Hz in 1 Hz steps, and rejects power frequency noise at better than 70 dB, greater than 3,000 to 1, at 50 Hz and 60 Hz. It has a trans-reflective colour LCD, internal data logging and GPS.
Channel 1 is a high input impedance voltage channel, auto-ranging across 0 to 6 V, 0 to 60 V and 0 to 300 V. Channel 2 accepts a flexible or clamp CT, so current and voltage are displayed together with the phase angle between them. That is what makes current split and grid impedance measurement possible with one instrument.
Plus or minus 0.5 percent of full scale deflection, plus or minus 2 counts, per the manufacturer manual, Section 7.11. Filter accuracy depends on input conditions, and high noise levels may cause the instrument to select a higher range. Frequency lock is plus or minus 1 Hz.
Two 3.7 V lithium ion NCR18650 cells give 8 to 16 hours of operation. A 12 V DC 2 A charger is supplied with the hire. Operating temperature is 0 to 40 degrees Celsius.
The Mitton Instruments TVM1100 tuned voltmeter, test leads and voltage probes, the 12 V DC charger and a carry case. Megavar runs the TVM1100 and LCI2000C together on substation earthing assessments and can advise on traverse placement and interpretation against AS 2067 and IEEE Std 80.
Submit your rental request online, and our team will respond promptly with availability, pricing, and expert advice.
Once confirmed, we’ll quickly process your booking and dispatch the equipment. Delivery and collection can be arranged to suit your schedule.
Get to work with reliable, industry-grade test equipment. Our technical team is available to support you every step of the way.
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